Lots of terrain details makes my batch count high. Ideas?

Okay I'm kind of in awe -- I just found a setting in the Terrain settings that has a drastic effect on the draw call count. Now I'm just wondering why they had such a seemingly terrible default value for batching terrain details!

The setting is "Detail Resolution Per Patch", you can see its description in the manual here. It says that it's the "length/width of the square of patches renderered with a single draw call." By default for me, it was set to 8. I increased the heck out of that to something like 64 or 128 and my draw calls in the scene I was working in reduced from around 750 to around 245 instantly!

Surely there's more to this than that, I'll need to look more into gpu instancing and the implications of things like this. But hopefully this helps your situation, definitely a very quick fix!